NK’s versatile analog input signal conditioners and isolators enable clearer AC/DC input conversions

Analog input signal conditioners by NK

Mod-Tronic Instruments Ltd. carries a range of industrial test and measurement solutions by NK Technologies, including five categories of signal conditioners. These devices are designed to convert one type of electronic signal into another type – especially signals that may be hard to read by conventional instruments, converted into a more easy-to-read format.

This line by NK Technologies includes two kinds of analog input signal conditioners and isolators: one with an AC input and one with a DC input.

Two connections for input signals

NK’s ADC series of AC voltage transmitters accepts direct voltage inputs, and the current models include external AC current sensors. Each of these signal converters connects up to eight 4-20-mA loop-powered analog sensors, up to eight separately powered 4-20-mA output sensors, or up to four of both. This creates a digital signal that represents zero-to-100 per cent of each sensor output. Available from Mod-Tronic, this is the ideal device for photovoltaic power production system monitoring.

Every ADC converter allows individually ranged devices to interface with the Modbus RTU serial protocol, the industry standard. The device can accept analog signals from current, voltage, or temperature sensors, which enables high versatility and greater accuracy for the installer. NK designed this series to meet its own high standards of dependability and ease of use.

The CTC series of signal converters have DC inputs, each with two connections for the input signal – the signal input and the common connection. Each unit allows the use of an existing standard 5A secondary or low-voltage ProteCT current transformer over a conductor to create an industry-standard 4-20-mA, two-wire, loop-powered signal. This signal is proportional to the current in the primary circuit. The converter snaps into a standard DIN rail, and the output is connected to the load, while a 24-VDC source is connected to the current transformer.

With a selection that boasts more than 1,300 instruments, NK Technologies maintains a focus on manufacturing innovative, cost-efficient current-sensing solutions that always meet or exceed users’ performance expectations. The company is a major provider of current-measurement products to the industrial and factory-automation markets.

For more information, contact Mod-Tronic.

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